High Pressure Aisi A3 Cold Rolled Steel Bar For Producing
Aisi A3 Cold Rolled Tool Steel Bar High Pressure Steel Pipe For Producing
A3 steels should be heated uniformly to 790-820°C (1436-1508°F) until completely heated through. Then heated to the hardening temperature of 950-980°C(1742-1796℉), soak at the temperature enough time, let A3 steel to be thoroughly heated .
Chemical composition
| C(%) | 0.95~1.05 | Si(%) | 0.10~0.50 | Mn(%) | 0.40~1.00 | P(%) | ≤0.030 |
| S(%) | ≤0.040 | Cr(%) | 4.75~5.50 | Mo (%) | 0.90~1.40 | V(%) | 0.15~0.50 |
Tempering of A3 tool steel
Tempering of A3 steels is performed at 150-400°C (302-752°F), Soak well at the selected temperature and soak for at least one hour per 25mm of total thickness. Get Rockwell C hardness of 57 to 62. Others different Heat treatment temperature will get different hardness. Below only for reference.
Temperature [℃] 150 200 250 300 350 400
Hardness [HRc] 62-61 61-60 60-59 59-58 58-57 58-57
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